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# Copyright 2017 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Collects Web IDL definitions in IDL files into a Python object per Blink
component.
Collected IDL definitions are parsed into ASTs and saved into a file with
a label of Blink component.
"""
import optparse
import shlex
import web_idl
from idl_parser import idl_parser
from idl_parser import idl_lexer
_VALID_COMPONENTS = ('core', 'modules', 'extensions_chromeos',
'extensions_webview')
def parse_options():
parser = optparse.OptionParser()
parser.add_option(
'--idl_list_file',
type='string',
help="a file path which lists IDL file paths to process")
parser.add_option(
'--component',
type='choice',
choices=_VALID_COMPONENTS,
help="specify a component name")
parser.add_option(
'--for_testing',
action='store_true',
help=("specify this option if the IDL definitions are meant for "
"testing only"))
parser.add_option('--output', type='string', help="the output file path")
options, args = parser.parse_args()
required_option_names = ('idl_list_file', 'component', 'output')
for opt_name in required_option_names:
if getattr(options, opt_name) is None:
parser.error("--{} is a required option.".format(opt_name))
if args:
parser.error("Unknown arguments {}".format(args))
return options, args
def main():
options, _ = parse_options()
with open(options.idl_list_file, encoding='utf-8') as idl_list_file:
filepaths = shlex.split(idl_list_file)
lexer = idl_lexer.IDLLexer()
parser = idl_parser.IDLParser(lexer)
ast_group = web_idl.AstGroup(
component=web_idl.Component(options.component),
for_testing=bool(options.for_testing))
for filepath in filepaths:
ast_group.add_ast_node(idl_parser.ParseFile(parser, filepath))
ast_group.write_to_file(options.output)
if __name__ == '__main__':
main()
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